java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem05_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fab3c18 [2019-08-22 19:57:12,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-22 19:57:12,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-22 19:57:12,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-22 19:57:12,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-22 19:57:12,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-22 19:57:12,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-22 19:57:12,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-22 19:57:12,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-22 19:57:12,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-22 19:57:12,774 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-22 19:57:12,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-22 19:57:12,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-22 19:57:12,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-22 19:57:12,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-22 19:57:12,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-22 19:57:12,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-22 19:57:12,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-22 19:57:12,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-22 19:57:12,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-22 19:57:12,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-22 19:57:12,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-22 19:57:12,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-22 19:57:12,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-22 19:57:12,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-22 19:57:12,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-22 19:57:12,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-22 19:57:12,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-22 19:57:12,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-22 19:57:12,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-22 19:57:12,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-22 19:57:12,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-22 19:57:12,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-22 19:57:12,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-22 19:57:12,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-22 19:57:12,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-22 19:57:12,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-22 19:57:12,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-22 19:57:12,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-22 19:57:12,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-22 19:57:12,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-22 19:57:12,801 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-08-22 19:57:12,816 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-22 19:57:12,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-22 19:57:12,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-22 19:57:12,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-22 19:57:12,818 INFO L138 SettingsManager]: * Use SBE=true [2019-08-22 19:57:12,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-22 19:57:12,818 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-22 19:57:12,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-22 19:57:12,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-22 19:57:12,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-22 19:57:12,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-22 19:57:12,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-22 19:57:12,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-22 19:57:12,820 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-22 19:57:12,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-22 19:57:12,820 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-22 19:57:12,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-22 19:57:12,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-22 19:57:12,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-22 19:57:12,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-22 19:57:12,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-22 19:57:12,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-22 19:57:12,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-22 19:57:12,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-22 19:57:12,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-22 19:57:12,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-22 19:57:12,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-22 19:57:12,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-22 19:57:12,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-22 19:57:12,851 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-22 19:57:12,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-22 19:57:12,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-22 19:57:12,869 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-22 19:57:12,870 INFO L275 PluginConnector]: CDTParser initialized [2019-08-22 19:57:12,871 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label43.c [2019-08-22 19:57:12,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d6e7988a/2a0c2fa510e4446fb5059ab5fc156748/FLAGc030b122a [2019-08-22 19:57:14,025 INFO L306 CDTParser]: Found 1 translation units. [2019-08-22 19:57:14,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label43.c [2019-08-22 19:57:14,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d6e7988a/2a0c2fa510e4446fb5059ab5fc156748/FLAGc030b122a [2019-08-22 19:57:14,246 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d6e7988a/2a0c2fa510e4446fb5059ab5fc156748 [2019-08-22 19:57:14,254 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-22 19:57:14,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-22 19:57:14,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-22 19:57:14,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-22 19:57:14,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-22 19:57:14,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:57:14" (1/1) ... [2019-08-22 19:57:14,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38cc72b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:57:14, skipping insertion in model container [2019-08-22 19:57:14,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:57:14" (1/1) ... [2019-08-22 19:57:14,272 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-22 19:57:14,472 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-22 19:57:16,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 19:57:16,718 INFO L188 MainTranslator]: Completed pre-run [2019-08-22 19:57:18,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 19:57:18,265 INFO L192 MainTranslator]: Completed translation [2019-08-22 19:57:18,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:57:18 WrapperNode [2019-08-22 19:57:18,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-22 19:57:18,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-22 19:57:18,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-22 19:57:18,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-22 19:57:18,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:57:18" (1/1) ... [2019-08-22 19:57:18,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:57:18" (1/1) ... [2019-08-22 19:57:18,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:57:18" (1/1) ... [2019-08-22 19:57:18,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:57:18" (1/1) ... [2019-08-22 19:57:18,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:57:18" (1/1) ... [2019-08-22 19:57:18,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:57:18" (1/1) ... [2019-08-22 19:57:18,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:57:18" (1/1) ... [2019-08-22 19:57:18,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-22 19:57:18,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-22 19:57:18,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-22 19:57:18,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-22 19:57:18,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:57:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-22 19:57:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-22 19:57:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-22 19:57:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-22 19:57:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-08-22 19:57:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-08-22 19:57:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-08-22 19:57:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2019-08-22 19:57:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2019-08-22 19:57:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2019-08-22 19:57:18,889 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2019-08-22 19:57:18,889 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-22 19:57:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-22 19:57:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-08-22 19:57:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-08-22 19:57:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-08-22 19:57:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2019-08-22 19:57:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2019-08-22 19:57:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2019-08-22 19:57:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2019-08-22 19:57:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-22 19:57:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-22 19:57:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-22 19:57:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-22 19:57:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-22 19:57:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-22 19:57:27,234 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-22 19:57:27,235 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-22 19:57:27,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:57:27 BoogieIcfgContainer [2019-08-22 19:57:27,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-22 19:57:27,238 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-22 19:57:27,238 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-22 19:57:27,239 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-22 19:57:27,240 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:57:27" (1/1) ... [2019-08-22 19:57:27,256 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-22 19:57:27,259 INFO L155 IcfgInterpreter]: Building call graph [2019-08-22 19:57:27,283 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-22 19:57:27,292 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-22 19:57:27,294 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-22 19:57:27,454 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 71 [2019-08-22 19:57:31,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:57:33,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:57:33,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:57:33,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:57:33,284 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:57:33,512 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 7 terms [2019-08-22 19:57:33,746 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-22 19:57:34,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-22 19:57:36,659 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-22 19:57:41,532 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-22 19:57:41,534 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 7 terms [2019-08-22 19:57:41,534 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 7 terms [2019-08-22 19:57:41,535 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 7 terms [2019-08-22 19:57:42,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-22 19:57:44,408 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 8 terms [2019-08-22 19:57:46,167 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 8 terms [2019-08-22 19:57:46,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:57:46,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:57:46,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:57:46,172 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:57:46,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:57:46,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:57:46,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:57:51,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 7 terms [2019-08-22 19:58:11,405 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:58:11,406 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 8 terms [2019-08-22 19:58:13,421 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 7 terms